cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A357604 Number of prime powers in the sequence of the floor of n/k for k <= n, A010766.

Table of values

n a(n)
1 0
2 1
3 1
4 2
5 2
6 2
7 3
8 4
9 4
10 4
11 5
12 4
13 5
14 6
15 6
16 8
17 8
18 7
19 8
20 7
21 8
22 10
23 11
24 9
25 10
26 11
27 12
28 12
29 13
30 11
31 12
32 14
33 14
34 15
35 16
36 14
37 15
38 16
39 17
40 16
41 17
42 16
43 17
44 18
45 18
46 20
47 21
48 19
49 21
50 21
51 21
52 22
53 23
54 22
55 23
56 23
57 24
58 26
59 27
60 22
61 23
62 24
63 25
64 28
65 28
66 28
67 29
68 29
69 30
70 30
71 31
72 27

List of values

[0, 1, 1, 2, 2, 2, 3, 4, 4, 4, 5, 4, 5, 6, 6, 8, 8, 7, 8, 7, 8, 10, 11, 9, 10, 11, 12, 12, 13, 11, 12, 14, 14, 15, 16, 14, 15, 16, 17, 16, 17, 16, 17, 18, 18, 20, 21, 19, 21, 21, 21, 22, 23, 22, 23, 23, 24, 26, 27, 22, 23, 24, 25, 28, 28, 28, 29, 29, 30, 30, 31, 27]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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